Attachment for gas pipes, burners, &amp;c.



B. L. BOND 6L G.- V.` KARLSON. ATTACHMENT POR GAS PIPBS, BURNERS, duc'.

APPLICATION FILED PEB. 13, 1912. 1,056,001, Patented Mar. 18, 1913j Z3 2a @j W3/? 3 fg WW @.oazz/ "Y corresponding parts in the figures.

BENJAMIN L. BOND AND GITSTAV V. KARLSON,

0F PHILADELPHIA, PENNSYLVANIA.

ATTACHMENT FOR GAS PIPES, BURNERS, &c.

`Specification of Letters Patent.

' Patented Mar. 18, 1913.

Application filed February 13, 1912. serial No. -e77,a74.

To all whom 'z't may concern: v

Be it known that we, BENJAMIN L. BOND, a citizen of the United States, and GUSTAV V. KARLsoN, a subject of the 'King of Sweden, both residing inl the city and county of Philadelphia, State. of Pennsylvania, have invented a new and useful Attachment for Gas Pipes, Burners, &c., of which the following is a specification.

Our invent-ion relates to a new and useful attachment for gas pipes, burners, or other suitable points in a gas system, to prevent accidental escape of gas therefrom, and consists of providing a valve which will automatically close when ,the pressure of the gas is reduced and which valve, it is necessary to operate manually before the gas can pass tothe desired point.

It further consists of providing a diaphragm, suitably connected with the valve proper, and which diaphragm is adapted to be held by the pressure of the gas in order to open the valve and to hold the same from its seat.

It further consists of other novel? features of construction, all as will be hereinafter fully set forth. e

For the purpose o f illust-rating our invention, we have shown in the accompanying drawings one form thereof which is at pres- 1 ent preferred by us, since the same has been found in practice'to give satisfactory and reliable results, although it is to 'be under.- stood that the'various instrulnentalities of which our invention consists can be variously arranged and organized and that our invention is not limited to the'precise arrangement and organization of these instrumentalities as herein shown and de. scribed; d g.

Figure 1 represents a side elevation of a gas burner showing our novel attachment in suitable connection therewith. Fig. 2 represents a vertical sectional view, on an enlarged scale, of the attachment. Fig. 3 represents-a top plan view of a part of the device in detached position. Fig. 4 represents a sectional view on line am Fig. 2. Fig. 5 represents a diagrammatic view `showing the device connected to` a`- gas meter.

'Similar numerals of reference indicate Our invention is designed to'prevent accidental escape of gas from a burner, or other point, wllere the stop cock of the valve of the burner or other' fixture has been left open.

supplied by means of a com inserted into meters, that considerable loss of life has been occasioned by reason of the fact that a stop cock valve or burner'has not been closed or turned oil", when the gas automatically ceases to flow by reason of the fact that the amount of gas equal to the value of the coin has been consumed, and where another member of the household has inserted another coin, gas has been permitted to pass from the burner into the room and occasioned the death of the inmate. f Our invention consists in providin a valve in the gas pipe at a suitable lpoint with respect to the burner which will automatically close as soon as the lowof gas has ceased, or the pressure thereof is reduced sufficiently to permit the 'valve to close, and which valve must be manually operated in order to permit the gas to again pass to the burner.

Referring to the drawings z-`1 designates la gas'burner and 2 the pipe leading to a suitable source of supply (not shown), and at` a suitable point we provide a valve 3. As here shown, the .valve consists of a casing l` having the inlet 15, and the outlet 6, with the dividing'wall 7 therein provided with a' suitable opening `8. In the opening we lnount a sleeve 9, which nlay be provided, asl here shown, with the flange 10 to seat on the, dividing-wall 7. The said sleeve 9 is provided wit-h aplurality'of ports 11 there# through and also with the guide tube 12.

The sleeve and guide-tube are ofthe same a nozzle by interior diameter and form means of-which entering direct-ly upward lagainst; a phragm hereinafter described.

1 3 designates thevalve which has a seat on the upper end wall of the sleeve 9 in order to control the passage through the ports 11. The valve 13 is rovided with a gas is projected controlling dlalVe have found in buildings'where gas is i stem 14 which is movable 1n the guide 12.

The vstem 14 is suitably threaded in order to receive the nut l5 against which bears a `spring 16, which also bears aga-inst a. suitable part of the sleeve9, as will hereinafter be explained. It will be seen that by the adjustmentvof the nut l5, the tension of the spring 16 may bejvaried. l

17 designates a diaphragm suitably sup-- ported linthe ylcasing 4, and as here shown, the diaphragm 17 is` secured, in any suitable a manner, between the iangeflS on the casing 4 and the ring '19, it being noted rthat theV diaphragm is of suitable size and material in order to 4rise and fall a suitable distance.

The fasteningmeans as heredisclosed, consists of the screws which also serve to hold a c'ap 21 in placaf'to suitably close thel 24,- suitable means 26 connecting the washerI 24 with the valve 13. It will be noted that the diaphragm'17 is situated directly-within the large chamber 28 of the casing and upon the opposite side of the valve 13 from the inlet of the casing and that the said diaphragm 17 is situated in the direct path-,of the flow of the gas to be acted upon by the full` pressure thereof when the said valve.

13 1s open so that the full direct pressure oi' the gas will hold the valve 13 in elevated position until the said pressure lowers for any reason.

The Operation of the device is as follows :'w-lVhen the valve is in the position shown in Fig. 2, the pressure of the gas from the pipe 2 is not suiicient tO remove the valve 13v from its seat against the tension of the spring 16, but when it is desired that/the gas reach the'burner 1, the operator by grasping the plug 23 can raise the diaphragm and so the valve 13 from its seat. against the tension of the spring 16, immediately upon which the gas will pass through the ports 11 and issue from the nozzle 9 in a jet to enter the large chamber '28 in the casing 4, and the direct pressure Of thev jet of gas will directly impinge against the diaphragm 17 and move and hold it in its'elevated posit-ion tO which it has been raised by the operator. The gas can thus pass the'cock 27, which has been suitably turned for this purpose, `and reach the burner 1. As heretoforestat'ed, where the slot meter in a gas syst-em is used, `as soon as the amount of gas equal to the value of the coin, has been consumed, the flow of gas from the pipe 2 will cease, immediately -upon which the pressure having been relieved from the diaphragm 17, the spring 16 willactto lower the valveV 13 and close the same against the'seat, and" drawing down the diaphragm 17 into the position seen in Fig.- 2, so that no further `gas can passte the'burner until the valve 13 is again manually opened. The advantage of this will readily be vapparent for should the stop cock of the burner no-t be closed, and another member of the household dro another coin into the slot of the meter, t e gas would readilypass -to the room and the burner not* being lighted, the gas would be wasted and if the occupant of the room be asleep, suffocation vmay result. This is impossible with our device.

. As shown in Fig. 5, it will of course be apparent that the valve 3 is adapted to be used at any point where it isL desired to prevent the improper escape ofgas. In this connection the valve 3 is placed at a suitable point with respect to the meter 29 and the. main supply pipe 30, the operation heilig that the gas entering the inlet 5 of the valve will have sufficient pressure in Order tO hold lthe diaphragm 17 in suitable position to keep the valve 13 from its seat during the ordinaryconsumption of gas through the building, but should the supply of the meter be broken, as Otten Occurs when the meters are broken into tO obtain money, a freev flow of gas occurs, this would reduce the pressure against the diaphragm 17 causing the spring 16 to immediately operate to close the valve 13 so that the further improper escape Of gas is prevented.

Having thus described our invention, what we claim as new and desire to secure by Let-ters Patent, is

In a device of the character stated, a casing formed with a dividing wall having an opening and forming an inlet chamber on one side and an outlet chamber On the other side, having, respectively, an inlet and an outlet, an imperforate sleeve secured in said opening to form a nozzle, projecting above said dividing wall, and having a seat at its Open upper end situated within said outlet chamber and at a level' above the outlet, a valve fitting said seat and movable in said outlet chamber, said'sleeve and valve being of considerably less diameter than the interior diameter of said outlet chamber, a

l.diaphragm in said outlet chamber directly BENJAMIN' L. BOND. GUsTAv v. KARLsON.

Witnesses ROBERT E. ERWIN, SOCIETA I. ERwIN. 

